Horizontal bearing reinforcing body of soft foundation cast-in-place pile and construction method thereof

Abstract

The invention discloses a horizontal bearing reinforcing body of a soft foundation cast-in-place pile and a construction method thereof. The device comprises one group of wing plates with the same structure and size and a hoop, wherein the wing plates are uniformly arranged at the periphery of the hoop, and small holes are arranged in the wing plates; the wing plates are in a rounded-trapezoid-like shape, and clamping grooves are arranged in the short edges of the wing plates; projecting teeth are uniformly arranged in the hoop in the peripheral direction, the number of the projecting teeth is consistent with the number of the wing plates, and the wing plates are hinged to the hoop through the clearance fit of the clamping grooves and the projecting teeth; and the wing plates can rotate relative to the hoop in a 90-degree range. The long-lasting problems that the single dependence of the horizontal bearing capability improvement of the cast-in-place pile on the diameter increase of the pile causes cost wastes and a specially-shaped pile foundation has to depend on special construction equipment are solved. According to the method, the horizontal bearing reinforcing body is jointly formed by adopting the wing plates, the hoop and grouting concrete, the improvement of the horizontal bearing capability of the cast-in-place pile is realized, the vertical bearing capability is also enhanced, and special pile foundation construction equipment is not required; and the mounting method is simple, efficient and rapid.

Description

technical field [0001] The invention relates to building construction and pile foundation engineering technology, in particular to the problem of construction load bearing safety of cast-in-place piles, in particular to a horizontal load-bearing reinforcement of cast-in-place piles in soft soil foundations and a construction method thereof. Background technique [0002] With the development and utilization of large-scale land resources in my country, pile foundations have become the main carrier of various engineering constructions, and they are widely used in high-rise buildings, highway bridges, wind power foundations and other fields. In addition to bearing vertical loads, pile foundations also bear certain horizontal loads in many cases (for example, earthquake loads, wind loads, adjacent pile loads, adjacent excavations, slope reinforcement, etc.). Bored piles are widely used because of their convenient construction and high bearing capacity. In recent years, the accel...

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Problems solved by technology

The above special-shaped pile foundations not only increase the vertical bearing capacity, but also contribute to the improvement of the horizontal bearing capacity of the pile foundation, but the problem is that these pile types must rely on special construction equipment, the construction operation is complicated, and the pile quality is relatively low. Difficult to guarantee

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